squarefrog

Good point. Thanks Squid!

I'd like to remove my cache drive, and I don't intend on replacing it. I currently have some Docker containers using it, but they can go too. Is it just a case of deleting the Docker containers, stopping the array, and unassigning the cache drive, then starting the array back up?

Yeah a couple of the drives are getting a bit old. I had planned on replacing a drive every 3 months until they have all been replaced, so I'll move the brand new drive to the parity. While I wouldn't be devastated if I lost the data on my array (the important stuff is backed up online), it would be very inconvenient. Already do the monthly checks, but I'll run some long tests tonight before bed.

OK looking at the long SMART report, the drive doesn't look too bad at all. I think I'm still going to replace it as I'll always regret it if I don't and it fails! Plus it is almost 4 years old now, so it has served me well. smartctl 6.2 2013-07-26 r3841 [x86_64-linux-4.1.13-unRAID] (local build) Copyright (C) 2002-13, Bruce Allen, Christian Franke, www.smartmontools.org === START OF INFORMATION SECTION === Model Family: Seagate Barracuda 7200.14 (AF) Device Model: ST3000DM001-9YN166 Serial Number: W1F0MS4V LU WWN Device Id: 5 000c50 05119bc8f Firmware Version: CC4B User Capacity: 3,000,592,982,016 bytes [3.00 TB] Sector Sizes: 512 bytes logical, 4096 bytes physical Rotation Rate: 7200 rpm Device is: In smartctl database [for details use: -P show] ATA Version is: ATA8-ACS T13/1699-D revision 4 SATA Version is: SATA 3.0, 6.0 Gb/s (current: 3.0 Gb/s) Local Time is: Wed Feb 10 08:29:19 2016 GMT ==> WARNING: A firmware update for this drive may be available, see the following Seagate web pages: http://knowledge.seagate.com/articles/en_US/FAQ/207931en http://knowledge.seagate.com/articles/en_US/FAQ/223651en SMART support is: Available - device has SMART capability. SMART support is: Enabled === START OF READ SMART DATA SECTION === SMART overall-health self-assessment test result: PASSED General SMART Values: Offline data collection status: (0x00) Offline data collection activity was never started. Auto Offline Data Collection: Disabled. Self-test execution status: ( 0) The previous self-test routine completed without error or no self-test has ever been run. Total time to complete Offline data collection: ( 584) seconds. Offline data collection capabilities: (0x73) SMART execute Offline immediate. Auto Offline data collection on/off support. Suspend Offline collection upon new command. No Offline surface scan supported. Self-test supported. Conveyance Self-test supported. Selective Self-test supported. SMART capabilities: (0x0003) Saves SMART data before entering power-saving mode. Supports SMART auto save timer. Error logging capability: (0x01) Error logging supported. General Purpose Logging supported. Short self-test routine recommended polling time: ( 1) minutes. Extended self-test routine recommended polling time: ( 340) minutes. Conveyance self-test routine recommended polling time: ( 2) minutes. SCT capabilities: (0x3085) SCT Status supported. SMART Attributes Data Structure revision number: 10 Vendor Specific SMART Attributes with Thresholds: ID# ATTRIBUTE_NAME FLAG VALUE WORST THRESH TYPE UPDATED WHEN_FAILED RAW_VALUE 1 Raw_Read_Error_Rate 0x000f 117 099 006 Pre-fail Always - 164811800 3 Spin_Up_Time 0x0003 092 092 000 Pre-fail Always - 0 4 Start_Stop_Count 0x0032 099 099 020 Old_age Always - 1084 5 Reallocated_Sector_Ct 0x0033 100 100 036 Pre-fail Always - 0 7 Seek_Error_Rate 0x000f 070 060 030 Pre-fail Always - 11153886 9 Power_On_Hours 0x0032 080 080 000 Old_age Always - 17574 10 Spin_Retry_Count 0x0013 100 100 097 Pre-fail Always - 0 12 Power_Cycle_Count 0x0032 100 100 020 Old_age Always - 64 183 Runtime_Bad_Block 0x0032 100 100 000 Old_age Always - 0 184 End-to-End_Error 0x0032 100 100 099 Old_age Always - 0 187 Reported_Uncorrect 0x0032 100 100 000 Old_age Always - 0 188 Command_Timeout 0x0032 100 100 000 Old_age Always - 0 0 0 189 High_Fly_Writes 0x003a 100 100 000 Old_age Always - 0 190 Airflow_Temperature_Cel 0x0022 071 061 045 Old_age Always - 29 (Min/Max 21/36) 191 G-Sense_Error_Rate 0x0032 100 100 000 Old_age Always - 0 192 Power-Off_Retract_Count 0x0032 100 100 000 Old_age Always - 14 193 Load_Cycle_Count 0x0032 094 094 000 Old_age Always - 12160 194 Temperature_Celsius 0x0022 029 040 000 Old_age Always - 29 (0 15 0 0 0) 197 Current_Pending_Sector 0x0012 100 100 000 Old_age Always - 0 198 Offline_Uncorrectable 0x0010 100 100 000 Old_age Offline - 0 199 UDMA_CRC_Error_Count 0x003e 200 200 000 Old_age Always - 0 240 Head_Flying_Hours 0x0000 100 253 000 Old_age Offline - 634h+47m+36.067s 241 Total_LBAs_Written 0x0000 100 253 000 Old_age Offline - 63125348141158 242 Total_LBAs_Read 0x0000 100 253 000 Old_age Offline - 2738158456079 SMART Error Log Version: 1 No Errors Logged SMART Self-test log structure revision number 1 Num Test_Description Status Remaining LifeTime(hours) LBA_of_first_error # 1 Extended offline Completed without error 00% 17565 - # 2 Short offline Completed without error 00% 17560 - SMART Selective self-test log data structure revision number 1 SPAN MIN_LBA MAX_LBA CURRENT_TEST_STATUS 1 0 0 Not_testing 2 0 0 Not_testing 3 0 0 Not_testing 4 0 0 Not_testing 5 0 0 Not_testing Selective self-test flags (0x0): After scanning selected spans, do NOT read-scan remainder of disk. If Selective self-test is pending on power-up, resume after 0 minute delay. This also gives me the opportunity to take my time and read through some SMART report topics and see if I can figure out what all the values mean. The main thing that confuses me is that I'm not sure whether I should be looking at VALUE, WORST, THRESH or RAW_VALUE. It certainly seems that this will be cleared up by reading Understanding SMART Reports wiki. Thanks for all the help everyone.

Yes, I can probably do this. I'm not entirely sure what I should be looking for when reading the smart report, is there a sticky post or wiki somewhere that explains what to look for? I had planned on replacing the ST300DM001 with a larger better quality further down the line anyway so this is no real hardship. I had already moved all the data off the 250GB, so it's been sat unused for a few months, until a reasonable deal came along. As I'm still only about 60% utilised, I can't quite justify the leap to 6TB, as much as I'd like to! I think it makes sense to just reallocate it as a parity and wait for prices to drop further, or for me to outgrow my current storage. Am I right in thinking this is achieved by stopping the array, and going to Tools > New Config? The alert was a bit alarming - so just to confirm it wont format my drives, but simply trigger the rebuild of the parity? Any harm in removing the missing 250GB and swapping the parity in one step?

OK, i'm about 99% into Zeroing the new 3TB drive. However, just idly reading through posts here trying to learn more about SMART errors, I see this post about replacing Seagate ST300DM001 drives immediately as a precaution for them being very error prone. I check my current array to see if I have any drives, and of course I do... my parity drive So now I'm worried. I figure I have two options now: [*]Replace the failed 250GB drive, with the soon to be precleared 3TB Red, order a new larger 4TB drive for a new parity drive, then hope nothing bad happens while I wait [*]Remove the failed 250GB drive from the array, and replace the suspect parity with the 3TB Red. Order a larger 4TB drive, preclear in the now empty slot, then swap the parity 3TB Red with the 4TB. Format the Red and add it to the array I currently have about 3 TB free on my array, so I'm not desperate for the storage right now. I can wait for prices to come down for 4TB. Because of that I think it'd definitely be wise to do the former of the two options. Is there anything in particular I need to do to remove the missing 250GB drive and replace the old parity with the new Red drive?

Hey thanks for the comprehensive reply John_M. Good to know what my future upgrade path can be. The drive I ordered arrived today, so popped it in and it's now pre-clearing. I'm going to be very nervous for the next day or two until I can get the disk in my array and be protected again!

I use the rear eSATA port to run an internal SSD Got 6 drives successfully stuffed in there.

I swear 3 days ago they were out of stock everywhere! I agree the N40L is fast enough for unRAID, but I wanted to run plex media server on it which requires extra grunt. The only downside to switching is I couldn't cram all 6 of my drives in which is a little sad.

Oh that's an interesting thought! I had planned on replacing the N40L with a Gen8, but they've suddenly become very expensive (new ones coming perhaps?) I'm going to stick with the N40L for another couple of years until I outgrow my current storage, then I'd like to DIY. Providing I can find a nice case thats not too much larger than the N40L and as quiet.

Excellent, I'll do that then! Luckily I did change all my drives to XFS when I first moved to v6. Just out of interest, would you recommend this path if I was upgrading a mostly full 2TB drive to 3TB? I should probably get another drive to keep around as a pre-cleared spare...

I probably should have mentioned that the 250GB drive doesn't contain any files, as I moved them once I started getting SMART errors. I presume in this case, this second option will allow me to pre-clear the drive inside my box, and not really suffer any downtime? I do want to preclear, as some of the UK couriers aren't particularly careful when handling hard drives and I want to check its reliability before committing data to it. Yep, my parity is 3TB.

I have an HP N40L, with 6 drives in (the maximum I can fit in). One of the drives is 250GB and failing. I've ordered a 3TB replacement, which I'd like to preclear before swapping out the 250GB. How can I achieve this without significant downtime on my unRAID setup? Having read the Configuration Tutorial, it seems the recommended way is to use the Preclear Plugin, but I can't attach the drive to my NAS.

Yep you're right. A quick google of the last line revealed my database was corrupt. All sorted now, sorry to waste your time.

OK it seems this was a database corruption. I moved /appdata/couchpotato/data/database/ to /appdata/couchpotato/data/database.bak And it started up fine. I guess I'll have lost changes since yesterday, but that's no big deal!

I think CouchPotato updated yesterday, and now I can't get it to start up. The log contains the following error, looped: db.open() File "/app/couchpotato/libs/CodernityDB/database_super_thread_safe.py", line 43, in _inner res = f(*args, **kwargs) File "/app/couchpotato/libs/CodernityDB/database_super_thread_safe.py", line 93, in open res = super(SuperThreadSafeDatabase, self).open(*args, **kwargs) File "/app/couchpotato/libs/CodernityDB/database.py", line 571, in open index.open_index() File "/app/couchpotato/libs/CodernityDB/tree_index.py", line 160, in open_index self.root_flag = struct.unpack('<c', self.buckets.read(1))[0] error: unpack requires a string argument of length 1 I don't know exactly when it updated, I used it yesterday, and today I can't access it.

Thanks trurl I finally got round to doing this. The file I was looking for was in ~/.config/mc/hotlist So I simply ran the following cp ~/.config/mc/hotlist /mnt/cache/appdata/mc/mc_hotlist Then added the following to bottom of the go file (/boot/config/go): # Copy midnight commander hotlist cp /mnt/cache/appdata/mc/mc_hotlist /root/.config/mc/hotlist I think in future I'll probably create a symbolic link to this file so I dont have to manually copy the file any time I add a directory path.

Each time I restart my server I have to re-add my favourite folders to mc. Is there anyway to save a config file for this so I don't have to recreate them each time?

You know, that actually makes much more sense. A quick googling after and I found this: Looks like that will do the trick nicely!

I realise this is more a Kodi question than unRAID, but I wonder if anyone else has experienced this. I have a couple of shares mounted in Kodi using NFS (using a mariadb docker to share the database). Generally this works great - fast, responsive, no dropouts. However, when I first switch on my Kodi box (Raspberry Pi 2), it boots so quick that the drives haven't spun up, so my library appears empty. I don't suppose anyone knows of an equivalent to the samba client timeout option? <samba> <clienttimeout>10</clienttimeout> <!-- timeout (in seconds) --> </samba> Or is there anything else I can look at other than leave my drives running 24/7?

I'm trying to install vim, but something isn't right. Heres what I do: $ cd /mnt/cache/Downloads $ wget http://mirrors.slackware.com/slackware/slackware-current/slackware/ap/vim-7.4.692-i486-1.txz $ installpkg vim-7.4.692-i486-1.txz $ vim -bash: /usr/bin/vim: cannot execute binary file I tried to make the binary executable with: $ chmod +x /usr/bin/vim But that didn't help. Any suggestions? Vi is weird and I can't use nano

Ah-ha! I wondered where you could set the mythical environment variables! I actually just stumbled across TransmissionGUI from a Google search too, will try at home. Shame as I generally use an iPhone or iPad to control Transmission. Maybe I'll look at the JSON RPC docs and write my own! Thanks trurl.

How do you change or remove the username and password in Transmission? Is it a case of editing the config file or can this be set somewhere? The web UI from the Mac version seemed to allow you to set individual seeding ratios per torrent. How can you access more options than the web UI offers?

This answers my question. I wondered if it loaded then ran from memory, but what you say does makes sense. I just didn't really want to put a cache drive in purely for Docker use. I'm due to move soon so will have to use Powerlines so not a lot of point in speedy writes and losing a drive bay. Another question I have is does the virtualisation require a lot of CPU grunt? I have an HP N40L which is fairly common, but low end. I see myself using sparklyballs headless kodi, and possibly a SQL docker.

Sorry if this has been asked before. If I have a docker container on a User Share, does running the image require the disk(s) involved to be always spinning while the application is running?